Sydney's permanent ice rinks tend to be pretty far out in the suburbs, so for the most part ice skating is one of those things you did in school holidays or for birthday parties as a kid then forget about when you grow up and move near the city.
Luckily, there have been a few pop-up ice skating rinks around inner-city Sydney in the past few years, and the latest is set to open at World Square. It's cheap, too $10 will get you 45 minutes on the ice. It's open until 9pm so it's a perfect after-work or uni-break activity and easy to combine with dinner or drinks at nearby bars and restaurants, including a Belgian chocolate cafe serving fondues, waffles and hot chocolate to keep you warm post-skate.